Technical data

Introducing the Product and Installing the Software
1.3 What's New in STEP 7, Version 5.5?
Programming with STEP 7
34 Manual, 05/2010, A5E02789666-01
Standard Libraries
• As of STEP 7 V5.5, the system functions have been expanded by the addition of SFB104
"IP_CONF" for program-controlled configuration of the integrated PROFINET interface of your
CPU.
• As of STEP 7 V5.5, the system functions have been expanded by the addition of SFC99
"WWW" for enabling or synchronizing user Web pages.
• As of STEP 7 V5.5, the system functions have been expanded by the addition of SFB73
"RCVREC" for receiving data records and SFB74 "PRVREC" for making data records available
on an I-device. These SFBs are only valid for S7-300 CPUs.
• As of STEP 7 V5.5, the system status list with SSL-ID W#16#xy9C has been expanded. This
provides information on the configured tool changer and its tools.
• As of STEP 7 V5.5, the following FBs of S7 communication are included: FB28 "USEND_E",
FB29 "URCV_E", FB34 "GET_E", FB35 "PUT_E". These are only for S7-300 CPUs and only
on connections via the integrated PN interface.
• As of STEP 7 V5.5, the following two FBs for open communication via Industrial Ethernet have
new names: FB 210 (previous name: "S5FW_TCP") is now called "FW_TCP", FB 220
(previous name: "S5FW_IOT") is now called "FW_IOT".
Report System Error
• As of STEP 7 V5.5, you can choose whether or not the status of slaves is evaluated when the
CPU starts up.
• As of STEP 7 V5.5, the additional texts of messages are displayed or implemented in the
"Message Preview", "Print" and "Print Preview" dialogs.
• As of STEP 7 V5.5, you can also download blocks generated by 'Report System Error' in HW
Config
System diagnostics
• As of STEP 7 V5.5, there are two "Diagnostics in Hexadecimal Format" dialogs: one for
PROFIBUS slaves and one for PROFINET devices.
Setting the PG/PC Interface
As of STEP 7 V5.5, you can use the USB prommer without needing to install additional software.
The required functionality is integrated in STEP 7.